// Licensed to Cloudera, Inc. under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  Cloudera, Inc. licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import $ from 'jquery';
import * as ko from 'knockout';

ko.bindingHandlers.moment = {
  update: function (element, valueAccessor) {
    const options = ko.unwrap(valueAccessor());
    const $element = $(element);

    const value = typeof options.data === 'function' ? options.data() : options.data;

    function render() {
      const fMoment = moment(value);
      let text;
      if (!fMoment.isValid()) {
        text = value;
      } else if (options.format) {
        text = fMoment.format(options.format);
      } else {
        text = fMoment.format();
      }
      $element.text(text);
    }

    render();
  }
};
